Pacific Coast Native Iris (PCN), or Californicae (CA), are much sought after in the Pacific Northwest as our climatic conditions are ideal for them. Their graceful and dainty flowers bloom April to June on stems 1' to 2' tall, in a wide variety of striking colors and patterns. These iris thrive in our marine coastal climate, with dry summers and cool, wet winters. Plants are very prolific and grow readily from seed. Transplanting, however, can be difficult. They are best moved or divided in the early fall, when root growth is active and can continue well into winter. Plants can also be moved prior to spring bloom.

Transplants must be kept well watered until natural rainfall can maintain high soil moisture. They should be heavily mulched with bark dust, pine needles or leaves, to prevent frost damage to newly developing roots. Once established, plants are usually tolerant of normal freezes and periods of drought. If frost damage occurs to leaves, wait until well into spring to watch for signs of new growth. PCNs should receive at least a half a day of sunshine.

Cal-Sibs (CA-SIB) are hybrids crosses between Pacific Coast Irises and Siberian Irises. Culture is identical to that for PCIs although CA-SIBs can usually handle a bit more direct sun. Their foliage is similar in height as Siberians; the flower stalks are similar in height as Siberians as well, however they tend to be a bit more lax about standing at attention.